JP6940091B2 - Foot cover - Google Patents

Description

The present invention relates to a foot cover that, when worn, is hidden inside shoes such as sneakers (casual exercise shoes) and pumps (mainly women's shoes with a wide open instep). In particular, a cushion or the like having a three-dimensional three-dimensional shape that does not have elasticity is arranged at the position of the heel of the sole of the foot, so that the holdability is good and the cushion or the like that does not have such elasticity is arranged. Despite this, the size of the foot cover is not limited.

Wearing shoes such as pumps on bare feet has become a well-established fashion. In this case, if the pumps and the sole of the foot are in direct contact with each other, the sweat generated on the foot causes the inside of the shoe to become stuffy, which causes discomfort.
Therefore, we propose a thin foot cover that covers the toes and the sole including the heel and exposes the instep and ankle, and the opening is greatly cut so that it will not be exposed from the pumps when worn. Has been done. If you wear this foot cover and put on pumps, it looks like you are wearing pumps on your bare feet, and because the foot cover is between the sole and the pumps, the inside of your shoes gets stuffy due to sweat. It is possible to prevent it from happening.

In addition, although such a foot attachment is described as a foot cover in this specification, it may be described as a sock cover, an inner sock, a nude sock, a cover sock, or the like.
Since such a foot cover has a large cut so that it is not exposed from the pumps, the wearing position may shift or come off due to friction during walking or the like. On the other hand, if the opening is made smaller, it will be exposed from the pumps. A foot cover developed in view of such a problem is disclosed in the following prior art documents.

Japanese Patent Application Laid-Open No. 10-292206 (Patent Document 1) states that the foot cover may come off from the bare foot due to friction between the pumps and the foot cover during walking, or the foot cover may come off when the pumps are put on or taken off. In order to prevent the foot cover from being displaced, a foot cover having a friction imparting body attached to the inner surface of the heel contact portion is disclosed.
In Practical New Design Registration No. 3165733 (Patent Document 2), if a rubber cord is provided along the peripheral edge of the opening of the foot cover disclosed in Patent Document 1, the rubber cord bites into the foot, so that the foot is made of rubber. In view of the problems that the string is attached, it feels painful, and it is not comfortable to wear, a flat rubber is provided along the periphery of the opening so that one side is in contact with the foot. The foot cover in which the portion is formed is disclosed.

Such a foot cover is similar to a sock in that it covers the foot, and the purpose of the sock is to reduce the impact on the heel part due to walking or sports, and to make the sock look taller by wearing it. A technique for providing an insole or an insole on the heel portion is disclosed in the following prior art documents.
Japanese Unexamined Patent Publication No. 2011-015927 (Patent Document 3) prevents excessive keratinization and cracking of the skin on the heel and sole, alleviates the impact on the heel of walking and sports, and further reduces the coldness of the foot. Disclose an insole that is used in direct contact with the skin of the foot for the purpose of deodorization and the like. This insole is used in socks and stockings by attaching it directly to the skin on the heel and sole. That is, by wearing the insole in a state of being in direct contact with the heel and the sole of the foot and wearing socks and stockings from above, it can be expected that moisturizing and heat retention, as well as impact mitigation and deodorizing effects are exhibited.

Japanese Patent Application Laid-Open No. 10-066606 (Patent Document 4) discloses a heel insole for socks that keeps the height high even when the shoes are taken off and has a natural appearance because the socks are worn. In this sock insole, the heel of the sole-like plate made of cushioning material such as rubber is thickened, the upper part is matched to the roundness of the heel, and the lower part is rounded to resemble the heel, and the insole part. A sandal-type sock insole that is hard to remove when worn with a rubber band attached to it. First, if you put this sock insole on your foot and put on the sock from above, the shape will be natural when viewed from the outside, and your height will be higher by the thickness of the heel.

Japanese Unexamined Patent Publication No. 10-292206 Utility Model Registration No. 3165733 Japanese Unexamined Patent Publication No. 2011-015927 Japanese Unexamined Patent Publication No. 10-066606

In order to provide a cushioning material on the heel portion of the foot cover disclosed in Patent Document 1 or Patent Document 2, it is conceivable to apply the technique disclosed in Patent Document 3 or Patent Document 4.
However, when the technology disclosed in Patent Document 3 is combined with the foot cover, the insole disclosed in Patent Document 3 is only used by being directly attached to the skin of the heel and the sole of the foot, and the foot skin, the insole, and the insole. Since the foot cover and the inner surface of the shoe are configured in this order, the insole itself may be displaced from the foot skin, or the insole may be displaced from the inner surface of the shoe via the foot cover, so that the holdability is not preferable. In this respect, although there is a possibility that such a deviation can be alleviated by combining the foot cover with the technique disclosed in Patent Document 4, a rubber band for fixing to the instep must be attached. It doesn't become. In any case, when the insole or insole is brought into contact with the foot skin in this way, not only is it impossible to realize the point that the sole of the foot cover is made of a thin elastic material, which makes the foot feel good. The discomfort caused by the stuffiness in the shoes due to the sweat generated on the (heel part) cannot be eliminated.

Further, shoe insoles (cushion materials) having a three-dimensional three-dimensional shape with a raised peripheral edge and a sole shape are manufactured and sold. In order to improve the holdability of the foot cover, the sole of the foot cover made of the thin elastic fabric disclosed in Patent Document 1 or Patent Document 2 has a three-dimensional three-dimensional shape in which the peripheral edge is raised. Even if a shoe insole (cushion material) is simply provided, such a cushion material is less elastic than the elastic fabric in order to improve the holdability. For this reason, it is necessary to manufacture and sell foot covers having soles of various lengths corresponding to the foot lengths.

The present invention has been developed in view of the above-mentioned problems of the prior art, and an object of the present invention is to arrange a three-dimensional three-dimensional shaped cushion or the like having no elasticity at the position of the heel of the sole of the foot. This is to provide a foot cover that has good holdability and is not limited in size even though a cushion or the like having no such elasticity is arranged.

In order to achieve the above object, the foot cover according to the present invention takes the following technical measures.
That is, the foot cover according to the present invention is a foot cover that covers the toes and the sole including the heel and exposes the instep and ankle, and is made of a thin elastic material, and has a sole and side sides. It is formed by a portion, an ankle portion, and a tubular toe tip portion that covers the toe tip, and an opening is provided on the opposite side of the sole to move the foot in and out, and above the side portion forming the opening. An elastic narrow fabric is provided on the edge, and a three-dimensional three-dimensional elastic member provides more elasticity than the elastic fabric on the surface opposite to the surface that comes into contact with the foot skin at the position of the heel of the sole. It is characterized in that an elastic member that is not provided is provided.

Preferably, the elastic member can be configured to have a shape of substantially half of the sole portion as its planar shape and a shape in which the peripheral edge of the planar shape is raised.
More preferably, the elastic member can be configured to have a high coefficient of friction on the surface that comes into contact with the inner surface of the shoe.

According to the foot cover of the present invention, a cushion having a three-dimensional three-dimensional shape that does not have elasticity is arranged at the position of the heel of the sole, so that the holdability is good and the cushion does not have such elasticity. It is possible to provide a foot cover whose size is not limited in spite of the arrangement of the above.

It is (A) the whole perspective view and (B) the perspective view seen from the back side with the heel raised about the foot cover which concerns on embodiment of this invention. It is a plan view of the foot cover of FIG. 1, (A) side view, (B) bottom view (shoe inner surface or floor surface contact side), (C) elastic member before being attached to the sole of the foot cover ( It is a top view (sole side) of a single unit (cushion material), and (D) a DD cross-sectional view of an elastic member.

Hereinafter, the foot cover 100 according to the embodiment of the present invention will be described in detail with reference to the drawings. There are various structures of the foot cover, and the present invention is not limited to a specific structure, but a feature described later (a point that a cushion material 120 as an elastic member is provided on the heel portion of the sole portion 104). Whatever the structure of the foot cover, the type of fabric that forms the foot cover, the pattern of the fabric, and the method of joining the fabric are basically the same. I don't mind. Therefore, the structure of the foot cover 100 shown below is merely an example.

The foot cover 100 is formed of a plurality of fabric pieces (parts), and all of the fabrics are knitted fabrics (stretchable fabrics) having elasticity. Here, the fabric forming this foot cover (excluding the cushion material 120 as an elastic member provided on the heel portion of the sole portion 104 because it is not a fabric) is bare heaven (bare heaven: bare heaven: other with a polyurethane thread as an axis). Flat knitted fabric knitted using yarn (covered yarn, etc.) wound with material yarn (cotton, wool, etc.), tricot (warp knitted fabric knitted with a tricot machine, which is a type of warp knitting machine), A fabric for pantyhose (knitted fabric containing polyurethane yarn and nylon yarn) or the like is preferably used. In particular, among these, bare heaven has (1) excellent elasticity, (2) good shape stability and little shape change after washing, and (3) soft texture and excellent fit. , (4) It is hard to wrinkle and crease, (5) It has a porous structure, so it is breathable, and (6) When it contains cotton, it has good touch and hygroscopicity, which is preferable for a foot cover. As described above, the stretchable fabric has excellent elasticity, and the cushion material 120 as an elastic member provided on the heel portion of the sole portion 104 does not have more elasticity than this elastic fabric.

Further, the foot cover 100 according to the present embodiment is a foot cover that covers the toes and the sole including the heel and exposes the instep and the ankle, and is a sole portion 104, a side portion 106, and a heel portion 108. And the toe portion 102 that covers the toe tip (the fabric that forms the heel portion 108 from the side side portion 106 is one fabric piece (part), but is not limited to this). Further, although not limited, the foot cover 100 shown below is shared on the left and right sides, and is preferable in that the left and right sides are not mistakenly worn because the foot cover 100 is shared on the left and right sides. If the foot cover is not shared on the left and right, the left foot and the right foot may have asymmetrical shapes (as a whole), and except for the cushion material 120 described later (only the cushion material 120 is left and right). It may have a symmetrical shape (asymmetrical and partially).

Further, the foot cover 100 according to the present embodiment is made of a plurality of fabrics (three fabrics of a fabric forming the toe portion 102, a fabric forming the sole portion 104, and a fabric forming the heel portion 108 from the side side portion 106). Although it is constructed, the joining of these fabrics is not limited. For example, the fabrics may be joined to each other by stitching, or the adhesive material is melted by heating with an adhesive tape having an adhesive material applied to one surface of the strip-shaped member, and the fabrics are heat-bonded to the fabrics. It does not matter if they are joined together. Here, this joining includes those by thermocompression bonding, those by heat welding, those by heat welding, and the like.

And what is characteristic is the elasticity of the three-dimensional three-dimensional shape on the surface opposite to the surface that comes into contact with the foot skin, which is at least a part of the fabric forming the sole (here, about half of the heel side). A cushioning material 120 is provided as an elastic member that is less elastic than the elastic fabric. The cushion material 120 has a shape of substantially half of the sole of the foot as its planar shape, and also has a shape in which the peripheral edge of the planar shape is raised. Further, the cushion material 120 has a high coefficient of friction on the surface that comes into contact with the inner surface of the shoe. The foot cover 100 having such a feature will be described in detail below.

1 and 2 show the foot cover 100 according to the embodiment of the present invention. FIG. 1A is an overall perspective view of the foot cover 100, and FIG. 1B is a perspective view of the foot cover 100 as viewed from the back side with the heel raised. FIG. 2A is a side view of the foot cover 100, FIG. 2B is a bottom view of the foot cover 100 (shoe inner surface or floor contact side), and FIG. 2C is a foot cover. It is a top view (sole side) of the cushion material 120 alone which is an elastic member before being adhered to the sole portion 104 of 100, and FIG. 2 (D) is a DD cross-sectional view of the cushion material 120. In each of the figures except FIGS. 2 (C) and 2 (D), it is assumed that the foot cover 100 is worn on the wearer's foot F. That is, since the foot cover 100 according to the embodiment of the present invention is made of an elastic material such as a tricot, it will be in a shrunk state if it is not shown in this assumption, and the shape should be understood. Is difficult, so it is assumed as described above. As can be understood by referring to these figures, the foot cover 100 is a foot cover that covers the toes of the wearer's foot F and the sole including the heel, and exposes the instep and ankle.

The foot cover 100 is made of a thin elastic fabric (fabric such as tricot) in which the opening which is the opening is cut so as not to be exposed from shoes such as sneakers when worn. The foot cover 100 is a thin elastic fabric (tricot) in which the opening, which is the opening, is cut larger so that the instep, which is the opening, is not exposed from the pumps, which is wider than the sneakers when worn. Etc.) may be formed. Here, the fact that the foot cover 100 is not exposed from the shoes or pumps when worn includes the fact that the foot cover 100 is hidden by the shoes or pumps and becomes invisible or difficult to see.

The foot cover 100 is formed of a toe portion 102, a sole portion 104, a side side portion 106, and a heel portion 108. An opening for putting the foot in and out is provided on the opposite side of the sole 104. The opening will be formed in the upper part of the toe part 102, the upper part of the side side part 106, and the upper part of the heel part 108. In this foot cover 100, for example, the toe portion 102, the sole portion 104, the side side portion 106, and the heel portion 108 are separately knitted (the side side portion 106 and the heel portion 108 are integrally knitted one piece of fabric). (Parts)), the side side 106 and the heel 108 and the toe 102 are sewn together and integrated, and further, these integrated toe 102, the side 106 and the heel 108 and the sole are integrated. 104 is sewn and integrated.

In the foot cover 100, an opening for putting the foot in and out on the opposite side to the sole portion 104 is formed by the toe portion 102, the side side portion 106, and the heel portion 108. The stretchable narrow cloth 112 and the stretchable narrow cloth 116 are provided on the inside of the foot cover 100 (the side in contact with the foot F: the skin side) over the entire circumference of the upper edge of the opening. When the elastic narrow fabric 112 and the elastic narrow fabric 116 are stretched when the foot cover 100 is worn, the opening is widened so that the foot cover 100 is easy to wear, and after the foot cover 100 is worn, the foot cover 100 is stretchable. Since the narrow cloth 112 and the stretchable narrow cloth 116 contract to reduce the opening, the foot cover 100 does not come off during walking. In addition, the stretchable narrow cloth 112 and the stretchable narrow cloth are on the outside of the foot cover 100 (the side opposite to the side in contact with the foot F: the side in contact with the inner surface of the shoe) over the entire circumference of the upper edge of the opening. 116 may be provided.

The stretchable narrow cloth 112 and the stretchable narrow cloth 116 may be provided not on the entire circumference of the upper edge of the opening but on a part of the upper edge, and may be provided intermittently rather than continuously. It may be provided. In any case, the stretchable narrow cloth 112 and the stretchable narrow cloth 116 make it easy to put on the foot cover 100, and the foot cover 100 is less likely to come off or shift due to an operation such as walking.

Here, as an example of the stretchable narrow cloth 112 and the stretchable narrow cloth 116, a nylon tape can be mentioned. It is also preferable that the stretchable narrow cloth 112 and the stretchable narrow cloth 116 are made of the same cloth as the stretchable cloth constituting (at least a part of) the foot cover 100.
Further, on the upper edge of the heel portion 108 of the foot cover 100, the inside of the foot cover 100 (the side in contact with the foot F: the skin side) is formed of a thin transparent sheet such as silicon resin to prevent the heel portion from slipping. It is also preferable to provide 118. As a result, it is possible to improve the adhesion of the foot F to the heel and further prevent the foot cover 100 from being displaced from the heel portion of the foot F. The heel non-slip 118 is not an essential configuration for the foot cover according to the present invention.

In this foot cover 100, at least a part of the fabric forming the sole portion 104 (here, about half of the heel side, not the toe side) and on the surface opposite to the surface in contact with the foot skin, is a three-dimensional solid. A cushioning material 120 is provided as an elastic member having a shape and having less elasticity than the elastic fabric. The cushion material 120 is not provided over the entire sole portion 104, but is provided only on the heel side. The method of attaching the cushion material 120 to the side of the sole 104 that comes into contact with the inner surface of the shoe (the side opposite to the surface that comes into contact with the skin of the foot) is not limited, and for example, the cushion material 120 and the sole 104 The cushion material 120 is attached so as not to deviate from the sole portion 104 by providing and fixing an adhesive layer having an area (maximum degree) corresponding to the plane shape of the cushion material 120 between them.

As shown in FIGS. 2 (C) and 2 (D), the cushion material 120 has a shape of substantially half of the sole portion 104 as its planar shape, and the peripheral edge of the planar shape (more specifically, the side peripheral edge 124). , The intermediate peripheral edge 126 and the heel peripheral edge 128) have a shape that is raised above the flat surface portion 122. Further, the cushion material 120 has a high coefficient of friction of the surface 130 that comes into contact with the inner surface of the shoe. More preferably, in a plane-shaped cross section of substantially half of the sole portion 104, the heel side is higher than the toe side, and the toe side tip S is thin. On the sole side of the foot cover 100, the cushion material 120 gradually becomes thinner (the length of the cross-sectional portion 132 of the cushion material 120 gradually becomes shorter) from the heel side to the toe side, and the tip of the toe side. In S, the cushion material 120 disappears and only the thin elastic fabric that constitutes the sole portion 104 is used. However, since the thickness of the cushion material 120 is thin at the tip S on the toe side, the thin material that constitutes the sole portion 104 is used. It is hard to feel the step with the elastic fabric. Therefore, even if the cushion material 120 is provided only on the heel side instead of being provided over the entire sole portion 104, there is little discomfort as a feeling of the sole of the foot.

Here, the material of the cushion material 120 is not limited, but is more elastic than the elastic fabric constituting the foot cover 100 (the elasticity here is the direction from the heel to the toe of the foot or Any material that does not have elasticity in the opposite direction and has a high coefficient of friction of the surface 130 that comes into contact with the inner surface of the shoe may be used, for example, silicon resin, elastomer, sponge, or the like. Even if such a silicon resin, an elastomer, a sponge or the like has elasticity in order to exhibit cushioning property (the elasticity here is the elasticity in the direction from the instep to the sole of the foot or the opposite direction), the foot The elasticity in the direction from the heel to the toe or the opposite direction is not provided as compared with the elastic fabric constituting the foot cover 100.

Further, when the friction coefficient of the surface 130 in which the cushion material 120 comes into contact with the inner surface of the shoe is realized not by the characteristics of the material but by the shape of dimples or the like, the material of the foot cover 100 is not further limited.
The effect when the wearer wears the foot cover 100 having the above structure on the foot F, or when the wearer wears the foot cover 100 on the foot F and further wears shoes will be described.

(1) The cushion material 120 provided on substantially half of the heel side of the sole portion 104 has a three-dimensional shape in which the side peripheral edge 124, the intermediate peripheral edge 126, and the heel peripheral edge 128 are raised on the peripheral edge of the planar shape. The peripheral edge of the cushion material 120 preferably holds the heel portion of the wearer's foot F, and the foot cover 100 is worn (in combination with the fact that the cushion material 120 does not deviate from the inner surface of the shoe as described later) to wear the shoe. When worn, the foot is preferably held in the shoe so that it does not slip in the shoe.
(2) Since the friction coefficient of the surface 130 where the cushion material 120 comes into contact with the inner surface of the shoe is high, the cushion material 120 does not shift from the inner surface of the shoe and the cushion material 120 is fixed to the sole 104. (In combination with the fact that the peripheral edge of the material 120 preferably holds the heel portion of the wearer's foot F and the foot cover 100 does not deviate from the foot F) The foot is held favorably and the foot does not slip in the shoe.

(3) The cushion material 120 is not provided over the entire sole portion 104, but is provided only on the heel side. That is, the heel side of the sole 104 does not expand and contract because the elasticity of the cushion material 120 is not as high as that of the elastic fabric, but the toe side of the sole 104 does not have the cushion material 120, so the sole It can be expanded and contracted by the elastic fabric of 104. Therefore, it is possible to cope with the difference in the length of the foot by the elastic material on the toe side of the sole portion 104 in which the cushion material 120 is not provided. As a result, it is not necessary to manufacture and sell foot covers having soles of various lengths corresponding to the foot lengths.
(4) As described above, the cushion material 120 is not provided over the entire sole portion 104, but is provided only on the heel side, but the thickness of the cushion material 120 is increased at the tip S on the toe side. Since it is thin, even if the cushion material 120 is provided only on the heel side, it is difficult to feel a step between the cushion material 120 and the thin elastic fabric constituting the sole portion 104. Therefore, it is comfortable to wear.
(5) Since the cushion material 120 is provided not on the side where the sole of the foot abuts but on the sole 104 on the side where the inner surface of the shoe abuts, the elastic fabric of the foot cover 100 abuts on the foot skin and feels good on the skin. It is possible to eliminate the discomfort caused by the sweat generated on the foot (heel part) causing the inside of the shoe to get stuffy.

As described above, according to the foot cover according to the present embodiment, the holdability is good and the holdability is good by arranging a three-dimensional three-dimensional shaped cushion or the like having no elasticity at the position of the heel of the sole. It is possible to provide a foot cover whose size is not limited even though a cushion or the like having no elasticity is arranged.
It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

The present invention is suitable for a foot cover worn with bare feet, and the size is not limited even if the holdability is improved by arranging a three-dimensional three-dimensional shaped cushion or the like having no elasticity at the position of the heel of the sole. It is particularly preferable in that a foot cover can be provided.

100 Foot cover 102 Toe part 104 Sole part 106 Side side part 108 Heel part 120 Cushion material F foot

Claims (1)

A foot cover that you wear on your bare skin when you put on your shoes.
The foot cover covers together to cover the sole including the toe and heel with exposing the instep and ankle, composed of thin stretchable fabric, paw, the side portion, the heel portion and the toe Formed by a tubular toe,
An opening for putting the foot in and out is provided on the opposite side of the sole of the foot.
An elastic narrow cloth is provided on the upper edge of the side portion forming the opening.
An elastic member having a three-dimensional three-dimensional shape and having less elasticity than the elastic fabric is provided on the surface of the heel of the sole of the foot opposite to the surface that comes into contact with the skin of the foot.
The elastic member has a shape of substantially half of the sole of the foot as its planar shape, and also has a shape in which the peripheral edge of the planar shape is raised.
The elastic member is a foot cover characterized in that the elastic member does not shift from the inner surface of the shoe due to a high coefficient of friction of the surface in contact with the inner surface of the shoe.

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